OPERATION
AND
APPLICATION
UNILINK HOST
ADAPTER 2–16
USER MANUAL
Since
the SANM cannot accept any NM commands, Positions 1–7
of Dipswitch 2
define
certain Network Manager function options normally configured with the
CONFIGURE
NETWORK MANAGER command.
When
Position 1 of Dipswitch 2 is
up, it selects a one-half second delay
after
CTS is active. No delay is selected when the dipswitch is down.
When
Position 2 of Dipswitch 2 is up, all
HIUs are given permission to
issue a network disconnect (DISC). This permission is granted by the
NM function when it initializes the HIU. No HIUs will be given
permission
to issue a DISC when the dipswitch is down.
Positions
3–6 of Dipswitch
2 represent the binary value for the number
of NM buffers to assign to an HIU when the HIU is initialized. The
number
of NM buffers can range from 1 to 16. The actual binary value
selected
will range from 0000 to 1
11
1 binary where Position 3 is the most
significant bit and Position 6 is the least significant bit. The adapter will
then
add 1 to the binary value to scale the actual range to 1–16.
When Position 7 of Dipswitch 2 is up, the NM function will use the
redundant
media feature that uses both network ports, Ports 1 and 2, to
communicate
with the secondary devices.
2.5.6
Configuration Summary
The general procedure for configuring the adapter follows in the list below
.
1.
Set the dipswitch positions.
2.
Issue the CONFIGURE ADAPTER command.
3. Issue
the CONFIGURE NM command. (If this adapter will be an
MHIU
or
a NM)
4. Issue the CONFIGURE HIU command. (If this adapter will be an
MHIU
or an HIU)